12901505

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2609}}^1$

素因数の和:2680

約数の個数: 16

約数和(自身を含む): 16536960

約数和(自身を除く): 3635455

約数列:

[1, 5, 23, 43, 115, 215, 989, 2609, 4945, 13045, 60007, 112187, 300035, 560935, 2580301, 12901505]

約数ペア:

[(1, 12901505), (5, 2580301), (23, 560935), (43, 300035), (115, 112187), (215, 60007), (989, 13045), (2609, 4945)]